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1、附录：外文资料翻译外文资料原文：AVirtualEnvironmentforProtectiveRelayingEvaluationandTestingA.P.SakisMeliopoulosandGeorgeJ.CokkinidesAbstract—Protectiverelayingisafundamentaldisciplineofpowersystemengineering.AtGeorgiaTech,weofferthreecoursesthatcoverprotectiverelaying:anundergraduatecoursethatdevotesone-thirdof
2、thesemesteronrelaying,agraduatecourseentitled“PowerSystemProtection,”andathree-and-a-half-dayshortcourseforpracticingengineers.Tomaximizestudentunderstandingandtrainingontheconcepts,theory,andtechnologyassociatedwithprotectiverelaying,wehavedevelopedanumberofeducationaltools,allwrappedinavirtuale
3、nvironment.Thevirtualenvironmentincludesa)apowersystemsimulator,b)asimulatorofinstrumentationforprotectiverelayingwithvisualizationandanimationmodules,c)specificprotectiverelaymodelswithvisualizationandanimationmodules,andd)interfacestohardwaresothattestingofactualrelayingequipmentcanbeperformed.
4、Werefertothissetofsoftwareasthe“virtualpowersystem.”Thevirtualpowersystempermitsthein-depthcoverageoftheprotectiverelayingconceptsinminimumtimeandmaximizesstudentunderstanding.Thetoolisnotusedinapassiveway.Indeed,thestudentsactivelyparticipatewithwell-designedprojectssuchasa)designandimplementati
5、onofmultifunctionalrelays,b)relaytestingforspecificdisturbances,etc.Thepaperdescribesthevirtualpowersystemorganizationand“engines,”suchassolver,visualization,andanimationofprotectiverelays,etc.Italsodiscussestheutilizationofthistoolinthecoursesviaspecificapplicationexamplesandstudentassignments.I
6、ndexTerms—Algebraiccompanionform,animation,relaying,time-domainsimulation,visualization.I.INTRODUCTIONRELAYINGhasalwaysplayedaveryimportantroleinthesecurityandreliabilityofelectricpowersystems.Asthetechnologyadvances,relayinghasbecomemoresophisticatedwithmanydifferentoptionsforimprovedprotectiono
7、fthesystem.Itisindisputablethatrelayinghasmadesignificantadvanceswithdramaticbeneficialeffectsonthesafetyofsystemsandprotectionofequipment.Yet,becauseofthecomplexityofthesystemandmultiplicityofcompetingfactors,relaying
